Product Description

The 2007-2013 BMW M3, with its high revving 4.0L V8, can now rev up much faster with a new 304 S/S header system by American Racing Headers. With real gains of 40 RWHP and 35 RWTQ (before tuning) on a bone stock M3, our new header system will literally transform your M3 and take performance to a whole new level.

Available as a complete system that includes our fully welded 1-3/4 primary headers with 3 merge collectors, 3 X-Pipe (with or without our 200 Cell Metallic Substrate cats), 3 resonators that lead to the factory Axleback ball/socket connections, and our Pure Thunder Mufflers with double walled, 304 S/S Quad Tips, there is simply nothing currently offered as a package that provides the incredible HP, Torque and Sound. The full system provides a deep, throaty tone without high pitch rasp.

Also available up to the rear axle as a direct bolt in for your stock or aftermarket Axleback. Best of all, our kit is 100% USA made and built to last indefinitely.

The 2007-2013 BMW M3, with its high revving 4.0L V8, can now rev up much faster with a new 304 S/S header system by American Racing Headers. With real gains of 40 RWHP and 35 RWTQ (before tuning) on a bone stock M3, our new header system will literally transform your M3 and take performance to a whole new level.

Available as a complete system that includes our fully welded 1-3/4 primary headers with 3 merge collectors, 3 X-Pipe (with or without our 200 Cell Metallic Substrate cats), 3 resonators that lead to the factory Axleback ball/socket connections, and our Pure Thunder Mufflers with double walled, 304 S/S Quad Tips, there is simply nothing currently offered as a package that provides the incredible HP, Torque and Sound. The full system provides a deep, throaty tone without high pitch rasp.

Also available up to the rear axle as a direct bolt in for your stock or aftermarket Axleback. Best of all, our kit is 100% USA made and built to last indefinitely.

All American Racing Headers are engineered and constructed using 304 Stainless Steel and are fabricated with precision cut, 3/8-inch warp-resistant and leak-free stainless steel flanges. Each primary tube is sized for the individual engine output to generate the greatest horsepower with the least amount of compromise created by tight engine bay parameters. Efficient flowing, state-of-the-art merge collectors that are tuned for HP and torque maximization are used in each application. Each header design has been tested in the extreme to ensure it delivers the performance gains we promise and you’d expect. ARH Headers are made here in the USA! American Racing Exhausts are Constructed with hi-quality 304 Stainless Steel Components and Tubing.

*** NOTE: Not legal for use on pollution-controlled motor vehicles. For off-road use only.The use of long tube headers with aftermarket cats, powerflo-x,hpipe,xpipe crossover pipes with or without aftermarket cats or aftermarket cats are illegal for installation and use on emission-legal vehicles when operated on public streets or highways. They can only be legally used while participating in sanctioned motorsports racing events.

Purchasing one of these items, you agree that the long tube headers with aftrmarket cats, powerflo-x,hpipe,xpipe crossover pipes with or without aftermarket cats or aftermarket cats purchased from Late Model Performance are soley being used for sanctioned motorsports racing events, and when installing or re-selling headers with aftermarket cats, powerflo-x crossover pipes with aftermarket cats or aftermarket cats, the end consumer is being made aware of and agrees to these terms of use.

American Racing Headers BMWM3-07134300DLSWC Header Review(s)

About American Racing Headers

History and information about American Racing Headers and their products.

Are you in the market for American Racing Headers, long tube headers, American Racing exhaust systems or header exhaust packages? You won't go wrong with one of these from LMPerformance manufactured by American Racing Exhaust & Headers. Because American Racing Headers has a staff with over 40 years of combined high performance exhaust fabrication experience, the people at American Racing Headers make sure only the finest components and craftsmanship go into every American Racing Exhaust & header system.

In addition, LMPerformance and ARH Headers believe in the concept that "Made in the USA" is something to be proud of. American Racing Exhaust & Headers provides a product manufactured solely using U.S. made materials. American Racing Headers IS determined to stay a step ahead of the competition. Whether on the street or track, you'll know American Racing Exhaust & Headers makes the best.

LMPerformance carries Long Tube Headers for vehicles such as Camaro, Corvette, Truck, Mustang, Challenger, Charger and more. American Racing Headers are made of 304 Stainless Steel, look great, and are easy to install. We also have exhaust systems and header exhaust packages from American Racing Headers. All of these at just the right price and, of course, great customer service.

American Racing Headers are engineered and constructed using 304 Stainless Steel and are fabricated with precision cut, 3/8-inch warp-resistant and leak-free stainless steel flanges. Each primary tube is sized for the individual engine output to generate the greatest horsepower with the least amount of compromise created by tight engine bay parameters. Efficient flowing, state-of-the-art merge collectors that are tuned for HP and torque maximization are used in each application. Each header design has been tested in the extreme to ensure it delivers the performance gains we promise and you’d expect.

American Racing Headers are the only manufacturer trusted by Chevrolet to build the original equipment headers used in every modern late model COPO Camaro racecar ever produced.

If you are asking yourself if you should install an aftermarket performance exhaust or if they are worth the cost maybe we can help allay your fears in that respect. First of all, headers are undoubtedly one of the simplest changes you can make that will generate an improvement in the way your engine performs because they are primarily a bolt-on application. They function by making it simpler for your engine to work exhaust gases out of the cylinders and they accomplish this by affording each cylinder with its individual exhaust pipe of equal lengths resulting in each cylinder’s exhaust gas being given the opportunity of arriving in the collector evenly with an absence of back pressure and consequently improving your engine’s power. If you are considering headers then take the time to peruse the LMPERFORMANCE web site and learn about the headers from the inimitable AMERICAN RACING HEADERS, a company that has been in the business of making headers since 2005 and with the goat of making a header that would be well received and problem free. Their customer base has grown and they are now a world renowned supplier of distinctive headers and cat-backs who in 2014 they were the first manufacturer in the performance industry to receive four separate Made in the USA certifications. Checkout our selection of Kooks Headers.

By: 5.0 CoyoteOwnership: 1 month - 1 yearPerformance and looks is great. The package comes with everything you will need. However, the X pipe fitment leaves something to be desired. The X pipe fits in such a way that it dips or hangs lower than the rest of the exhaust. My local exhaust shop tried flipping it every way concievable and at best it hangs. Since my car is lowered it scrubs on everything. Looks like I will toss it out and build a custom X pipe.

By: SSS ManOwnership: 1 day - 1 weekThey got them to me very fast and witb no problems what so ever. Did the installation my self and it was super easy to do. They are built exactly right for the vehical you choose. It makes the sound much deeper and more gutsy, plus the added MPG is great.

By: mrray13Ownership: 1 day - 1 weekWow, the quality, fit and finish of these headers is outstanding! I had JBA shorties on the car and had a best dyno of 253 rwhp and 239lb-ft of torque,+5rwhp and +8rwtq over baseline. The ARH headers/cats bolt on was another 10rwhp and 10lb-ft of torque! That's 15 plus over baseline in hp and 18 plus in torque! Not too bad, not too bad at all! These are quality parts by quality people! These are easier to install then the shorties too!

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* Shipping/Product Notes: Please note FREE Shipping refers to shipping within the contiguous continental US. All other locations extra. If your order will be delayed, you will be notified via email the estimated shipping date. Please note that we try to have every picture of every part number however some pictures may be representations. If you have any questions please call or contact us for clarification. For Example: Parts such as our clutch kit stages use the same pictures.

Originating in 2001 the work force at Late Model Performance has maintained a noteworthy high level of customer service and has made available a multifarious selection of new performance automotive parts and appurtenances represented by some of the preeminent names in the automotive performance parts industry. The vehicles represented range from 1950 to the present date and our inventory is tremendous and is continually rejuvenated for the purpose of offering an incomparable number and multiplicity of parts to meet the customer's every need. Our 5-star service is an additional reason to shop at Late Model Performance. All of our Performance Auto Parts include FREE Shipping and of course 5-star award winning customer service. See what LM Performance looked like in 2003.